Quiz · What DNA Tells Scientists

Question 1What is the main purpose of this talk?

To argue that DNA research is too dangerous to continue To describe how a powerful microscope is built To prove that humans evolved directly from bananas To explain what DNA is and what scientists can learn from it

Question 2How can DNA help the police in a criminal investigation, according to the talk?

A single hair or drop of blood can identify a suspect It predicts where a crime is likely to happen It records the voices of suspects at the scene It shows which judge should hear the case

Question 3What does the final sentence suggest about our knowledge of DNA?

Scientists have already discovered nearly everything We have understood only a small part of it so far The book of life is too damaged to read further New discoveries in this field have almost stopped